text: '''Wasserstein Weisfeiler-Lehman Graph Kernels'''
  
  __version__ = '0.1.2'
  from .wwl import wwl, pairwise_wasserstein_distance, PairwiseWWL, PairwiseOverlap
  from .propagation_scheme import WeisfeilerLehman, ContinuousWeisfeilerLehman
  from .utilities import wwl_custom_grid_search_cv, retrieve_graph_filenames